Storage battery.



No. 814,691. PATENTED MAR. 13, 1906. B. HALLOGK. v STORAGE BATTERY.

APPLICATION FILED MAY 15, 1905.

l 2 SHEETSSHBET l.

No. 814,691. PATENTED MAR. 18, 1906. H. B. HALLOCK. STORAGE BATTERY.

APPLICATION FILED MAY 15, 1905.

2 SHEETS-SHEET 2.

I K jaeigzd? yama citizen of the United 1ts object to provide a storage ASSIUNOR VANIA.

STORAGE BATTERY.

To 111/ whom it may (o/warn:

Specification of Letters Patent. Application filed May 15,1905. Serial Be it known that l, .llOWARl) B. llALLocx,

States, residing at Germantown, county of Philadelphia. and State of Pennsylvania, have invented a certain new and useful Improvement in Storage Batteries, of which the followingis a s pecilication.

My invention relates to a new and useful improvement in storage batteries, and has for battery consisting of only two plates, a negative and positive pole element placed horizon tally within the containing-cell, and the containing-cell being so shaped as to form a supportingframefor the lower plate and hold the active material in contact with the conductor during both the expansion and contraction or said active material. r

VV th these ends in view this invention consists in the details of construction and combination of elements hereinafter set forth and then specifically designated by the claims.

In order that those skilled in the art to which this invention appertains may understand how to make and use the same, the construction and operation will now be described in detail, referring to the accompanying drawings, forming apart of this specification, in which Figure 1 is a cross-section through my improved storage battery; Fig. 2, a plan View of the upper plate or negative-pole element with a portion of the active material broken away to show the grid; Fig. 3, a perspective view of amodilied form of separator; Fig. 4, a cross-sectional view through a battery in which a number of cells are all contained within the same jar; Fig. 5, a plan view of a jar consisting of four cells.

The principal purpose of this invention is to provide a storage battery which can be manufactured at a comparatively small cost and will take up a small space relative to the output of the battery, and I purpose to use only comphratively thick, so that the output of two dates in each cell said )lates bein the cell will be extremely large compared to.

its size and weight if the discharge rate is low.

A represents the containing-cell, which is made of any non-conducting non-porous matcrial the sides of which are vertical from the top down to a point near toe bottom, but the sides below the vertical portion incline inl l l l l l F ward and dowmvard Patented March 13, 1906: No. 260,418.

at an angle of preferably forty-live degrees, and in this portion of the jar bounded by the inclined sides, as represented at- B, is located the positive-pole element This positive-poleelement consists of a grid of conducting material, the foursides of which are inclined inward and downward, as represented at 1), so as to lie flat against the inside 01 the inclined portionsB of the sides of the jar; Strips Dextend across from one side to the other connected to the inclined sides D of the grid, and the active material is pasted within this grid, so formed that it will assume the shape. as shown in Fig. 1 in cross-section. A lug 1) extends upward from the grid. It will thus be seen that the positive-pole element lies upon the inclined portions B at the bottom of the jar, and when this positive-pole element expands, as it always does in form a tion, it will rid e upward upon the inclined per.- tions B, and the weight of the plate itself tends to force it downward, and these two forces namely, gravity and expansion-working in opposition to one another will always hold the active material in close contact with the conductor, so as to prevent sulfate forming between the conductor and active material. When the positive-pole element expands, it will travel upward upon the inclined portions B, and when it contracts the weight of the plate will force it downward, and thus the inclined sides I) of the grid wilLalways be held in tight contact with the active material whether the plate is ex panding or contracting, and the ribs D, extending tl'irough the active material, will also beheld in contact with the active material because of the pressure upon the plate from all sides.

E represents the negative-pole element or upper plate, andthis plate is formed simply of a grid of conducting material F, which surrounds the plate, and also has ribs Fextending across the same, the active material being pasted within this grid. This negative-p0le element is simply made with straight sides, as it is not IIGCGSSiLlZV lIl the negative-pole element to provide means for holding the con doctor in such tight contactv with the active material, as the injurious sulfate is not formed on the negative-pole element. A lug F extends upward from the gid F. The plates of this cell being placed/horizontal, it is of course necessary to guard against flakes of the active material falling downward from not affected by the acid.

the upper plate to the lower and bridging across, so as to short-circuit the battery.

In Fig. 1 I have shown a solid but porous separator, such as wood, (represented at G,) w ich rests upon s acers H, of non-conducting material, whic holds the separator G a distance above the plate C, so as to allow the electrolyte free access to the lower plate. Both plates are preferably provided with vertical holes formed therethrough to allow for the free gasing of the battery while on char e and also to allow the electrolyte access to alI parts of the plates. The conductinggrids of both the upper and lower lates are preferably made of sheet-lead and I ent into shape, being made all of one piece; but of course it is obvious that these grids could be east or made in separate pieces burned together.

In Fig. 3 I have shown a modified form of separator which will allow a perforated sheet or a sheet of loosely-Woven material to be interlposed between the two plates.

represents-two identical frames of nonconduoting material which ,are placed one above the other with a separating-sheet J between them. This sheet J may consist of a sheet of very-finely-perforated hard rubber or like material, or it may consist of looselywoven asbestos, felt, or any other substance With this separator it will be seen that a space is allowedfor the electrolyte above and below the separating-sheet J, and any of the active material which may pass through the meshes or perforations of the sheet J will be such small particles as not to build u or bridge through the sheet to the other p ate, and the layer of electrolyte above and below the sheet will tend toprevent the formation of any bridge between the plates, and at the same time a separator is provided. which will offer the least possible resistance to the flow of the current. I

In Figs. 4 and 5 I have shown how a plurality of cells could be contained in one jar, the' ar being divided'by partitions A into several compartmentaand the botom of each of these compartments is inclined at B the same as described in connection with Fig. 1. Each of the individual cells is made in the same manner as before described; but the jar is all in one piece, so' as to form a cluster of cells, thus adding to the convenience in handling and also reducing the cost of manufacture. It is obvious that any number of cells could be thus formed in one jar, and one cover could be made to answer for all of the cells, or each cell could have its individual cover Having thus fully described myinvention,

what I claim as new and useful is- 1. In a storage battery, a jar of noncon-' ducting material, two horizontally-arranged plates contained within the jar, the lower plate resting upon the bottom of the jar, the lower end of the sides of the jars to a height approximately level with the top of the lower plate being inclined inward and downward, the lower plate consisting of a grid of conducting material, said grid consisting of a frame inclined to fit upon the inside surface of the inclined sides of the jar and surrounding the plate with ribs extending across from one side to the other, active material pasted into the grid, a separator resting upon the top of the lower late, the'other plate resting upon the top of t e separator. 2. In a storage battery, a jar, the lowe end ofthe sides of which'are inclined inward and downward, conductive material lining the inside surfaces of the inclined portions, ribs of conducting material extending across and connected to the conductive lining, a lug extending upward from this conductive material, active material pasted into the gridthus forming a plate, a separator resting upon the top of the plate thus formed, a sec- .ond late resting upon the top of the separator, oth of said plates rovided with vertical holes formed through the active material.

3. In a storage battery, a jar, the lower end of the sides of which are inclined inward and downward, a horizontally-arranged plate resting upon the bottom of the jar, said plate consisting of active material, and a conductor surrounding the plate and extending through the active material from one side to the other, the surrounding conductor being inclined to fit the inclined surfaces of the jar, a

lug extending upward from the conductor of this plate, a separator resting upon the top of the plate, said separator consisting of a porous perforated sheet, spacers arranged .above and below said sheet, asecond plate arranged upon the ,top of the upper spacer, the openings through the perforated or porous sheet being smaller in diameter than the width of the space between the sheet and either of the plates, each of the-plates being provided with vertical openings formed through the active material thereof.

In testimonywhereof I have hereunto affixed my signature in the presence of two subscribing witnesses.

HOWARD B. HALLOCK.

Witnesses: ll/IARY E. HAM'ER, L. W. lVIoaRIsoN.

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